科学研究

Dr. Qin Yu is an associate professor (with tenure) in the Department of Real Estate, National University of Singapore. Her research interests include: 1) the impact of infrastructure investment (such as high-speed rail) on economic growth and redistribution; 2) the socioeconomic consequences of air pollution and climate change; 3) topics related to land market and housing market, including land and housing prices, housing policies and housing affordability. Dr. Qin completed her PhD in applied economics and management at Cornell University in 2014.

Internal migrants account for 10.8% of the world population today and are expected to cause substantial distributional effects between themselves and native residents in rapid urbanizing countries. In this paper, we study how a significant relaxation of internal migration restrictions affects labor market outcomes of both incumbent migrants and natives, exploiting the 2014 Hukou reform in China. This reform substantially removed the migration barriers of cities with an urban population below 5 million (non megacities) but kept the migration barriers in megacities almost unchanged. Using a difference in differences method, we find migrants‘ wages in non megacities experience approximately a 7.3% decline relative to that in megacities after the policy shock. The negative effects are stronger among older, less educated, and blue collar incumbent migrants. By contrast, the policy change has non-negative impacts on the wages and labor participation rates of the natives in non-megacities. These results suggest the downward wage pressure imposed by an inflow of migrants falls primarily on incumbent migrants rather than on natives.